Researchers explored something we all rely on in yoga:
How do people judge stretch intensity?
- Internal perception = “I feel a stretch here” / “this is my edge”
- External perception = a teacher/therapist feeling “tension” in the body
They compared the two using:
- Hamstring stretch (hip flexion)
- Shoulder stretch (extension)
This was a small sample size, young adults and only passive stretching was tested.
Key findings (translated for yoga)
1. “Feel your stretch” is valid… but not perfect. You can’t assume you feel what they feel.
2. Experience changes everything. More trained / more flexible participants had better awareness of their true edge.
3. Stretch tolerance ≠ stretch sensation. The “Edge” is partly psychological, not just physical.
4. Upper body awareness is weaker
5. Consistency matters more than method
What this really means for yoga teaching
1. “Go to your edge” needs better teaching. That cue is too vague for many students.
2. Beginners need guidance, not just freedom.
3. Hands-on assists are not neutral as you could take someone further than they’d choose.
4. Build stretch literacy. Flexibility is not just physical; It’s learned perception. So your teaching should include what they are feeling, where is the resistance?, etc.
5. Consistency beats complexity. Don’t confuse students with mixed signals